ATE139467T1 - ROLLER SCREEN FOR SIFTING BULK MATERIAL, IN PARTICULAR WOOD CHIPS - Google Patents

ROLLER SCREEN FOR SIFTING BULK MATERIAL, IN PARTICULAR WOOD CHIPS

Info

Publication number
ATE139467T1
ATE139467T1 AT92904706T AT92904706T ATE139467T1 AT E139467 T1 ATE139467 T1 AT E139467T1 AT 92904706 T AT92904706 T AT 92904706T AT 92904706 T AT92904706 T AT 92904706T AT E139467 T1 ATE139467 T1 AT E139467T1
Authority
AT
Austria
Prior art keywords
pct
rollers
screened
teeth
wood chips
Prior art date
Application number
AT92904706T
Other languages
German (de)
Inventor
Mikko Jokinen
Timo Kurki
Original Assignee
Bmh Wood Technology Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bmh Wood Technology Oy filed Critical Bmh Wood Technology Oy
Application granted granted Critical
Publication of ATE139467T1 publication Critical patent/ATE139467T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/023—Cleaning wood chips or other raw materials

Abstract

PCT No. PCT/FI92/00038 Sec. 371 Date Sep. 13, 1993 Sec. 102(e) Date Sep. 13, 1993 PCT Filed Feb. 12, 1992 PCT Pub. No. WO92/16311 PCT Pub. Date Oct. 1, 1992.The invention relates to an apparatus for separating finer and coarser material fractions of bulk material from each other, especially for separating sawdust from wood chips, the apparatus comprising a plurality of successive rollers (2) rotating about parallel axes of rotation, the upper surfaces of the rollers providing a path for the material to be screened; and a hopper for feeding the material to be screened to the infeed end of the path. There are radial and essentially axial grooves (5, 6) on the surface of the rollers (2), the grooves forming teeth (7) onto the surface of the rollers (2), and the teeth (7) of each roller (2) interdigitate with the radial grooves (5) of the adjacent roller (2), whereby the teeth (7) and radial grooves (5) form slots (8) between them for the particles of the material to be screened. With this construction it is possible to prevent the particles that are bigger than the grain size desired from passing through the screen.
AT92904706T 1991-03-21 1992-02-12 ROLLER SCREEN FOR SIFTING BULK MATERIAL, IN PARTICULAR WOOD CHIPS ATE139467T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI911383A FI88118C (en) 1991-03-21 1991-03-21 ROLLING PLATE FOR BULKING MACHINERY, SPECIAL TRACK

Publications (1)

Publication Number Publication Date
ATE139467T1 true ATE139467T1 (en) 1996-07-15

Family

ID=8532165

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92904706T ATE139467T1 (en) 1991-03-21 1992-02-12 ROLLER SCREEN FOR SIFTING BULK MATERIAL, IN PARTICULAR WOOD CHIPS

Country Status (13)

Country Link
US (1) US5377848A (en)
EP (1) EP0576437B1 (en)
JP (1) JP2527522B2 (en)
AT (1) ATE139467T1 (en)
AU (1) AU646931B2 (en)
BR (1) BR9205793A (en)
CA (1) CA2105176C (en)
CZ (1) CZ196393A3 (en)
DE (1) DE69211684T2 (en)
ES (1) ES2090606T3 (en)
FI (1) FI88118C (en)
NO (1) NO180523C (en)
WO (1) WO1992016311A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857498C1 (en) * 1998-12-14 2000-06-15 Siempelkamp Gmbh & Co Roller screen machine and its use
FI111055B (en) * 2001-11-23 2003-05-30 Raumaster Oy Roll screen, apparatus for screening chips and method in roll screen
CA2476194C (en) 2004-07-30 2010-06-22 Suncor Energy Inc. Sizing roller screen ore processing apparatus
US8393561B2 (en) 2005-11-09 2013-03-12 Suncor Energy Inc. Method and apparatus for creating a slurry
CA2640514A1 (en) 2008-09-18 2010-03-18 Kyle Alan Bruggencate Method and apparatus for processing an ore feed
CA2812125A1 (en) 2009-07-24 2011-01-24 Suncor Energy Inc. Screening disk, roller, and roller screen for screening an ore feed
CN102836828B (en) * 2011-06-21 2015-10-28 刘素华 Mould cloth garbage sorting system
US10111385B2 (en) 2016-06-24 2018-10-30 Jackrabbit Nut harvester with separating disks
US11396032B2 (en) 2016-08-18 2022-07-26 Outotec (Finland) Oy Self-cleaning roller screen
AU2020218530A1 (en) 2019-02-08 2021-08-12 Jackrabbit, Inc. A nut harvester with a removable assembly and a method of replacing a removable assembly of a nut harvester

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL36554C (en) *
US1677838A (en) * 1926-02-03 1928-07-17 Molin Adolf Gustaf Sizing apparatus for coke or the like
US1941147A (en) * 1931-06-19 1933-12-26 Krupp Ag Grusonwerk Classifying apparatus
US2966267A (en) * 1958-08-21 1960-12-27 James R Dunbar Apparatus for materials classification
US3870627A (en) * 1972-11-27 1975-03-11 John W Herkes Mechanical screening device for machine-harvested sugar cane
US3817375A (en) * 1973-02-28 1974-06-18 J Herkes Separating device
US4301930A (en) * 1979-09-24 1981-11-24 Radar Companies, Inc. Disk screen, modular disk assembly and method
US4658964A (en) * 1985-09-03 1987-04-21 Williams Patent Crusher And Pulverizer Company Rotary disc screen and method of operation
US4755286A (en) * 1987-07-30 1988-07-05 Beloit Corporation Split flow `V` screen
US4871073A (en) * 1987-10-02 1989-10-03 National Ecology, Inc. Disc screen separator device
US4903845A (en) * 1988-02-12 1990-02-27 Acrowood Corporation Machine and method for separating fines from wood chips
US5012933A (en) * 1988-02-12 1991-05-07 Acrowood Corporation Machine and method for sorting out over-thick wood chips
US4836388A (en) * 1988-04-27 1989-06-06 Beloit Corporation Apparatus for separating material by length
US4901864A (en) * 1988-08-16 1990-02-20 International Paper Company Grooved spacer for disc screen wood chip sorter

Also Published As

Publication number Publication date
NO180523C (en) 1997-05-14
FI88118B (en) 1992-12-31
BR9205793A (en) 1994-06-28
FI911383A (en) 1992-09-22
CA2105176A1 (en) 1992-09-22
NO180523B (en) 1997-01-27
EP0576437A1 (en) 1994-01-05
CA2105176C (en) 1997-05-13
JP2527522B2 (en) 1996-08-28
FI88118C (en) 1993-04-13
AU1264992A (en) 1992-10-21
US5377848A (en) 1995-01-03
NO933106D0 (en) 1993-09-01
DE69211684D1 (en) 1996-07-25
NO933106L (en) 1993-09-16
DE69211684T2 (en) 1996-10-31
JPH06501421A (en) 1994-02-17
FI911383A0 (en) 1991-03-21
WO1992016311A1 (en) 1992-10-01
EP0576437B1 (en) 1996-06-19
ES2090606T3 (en) 1996-10-16
CZ196393A3 (en) 1994-03-16
AU646931B2 (en) 1994-03-10

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee